ANS-C01 Network Design Practice Question
A company wants to monitor network traffic between two VPCs that are peered. Which AWS feature can capture IP traffic information for analysis?
⚠ Common exam trap
A common mix-up: candidates confuse AWS CloudTrail (which logs API calls) with VPC Flow Logs (which logs network traffic), leading them to select CloudTrail when the question specifically asks about IP traffic information for analysis.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
VPC Flow Logs
VPC Flow Logs capture IP traffic information for network interfaces in a VPC, including traffic between peered VPCs. They log metadata such as source/destination IPs, ports, protocols, and packet accept/reject decisions, which can be published to CloudWatch Logs or Amazon S3 for analysis. This makes them the correct choice for monitoring network traffic between two peered VPCs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS X-Ray
Why it's wrong here
Application tracing.
- ✗
AWS Config
Why it's wrong here
Resource configuration history.
- ✓
VPC Flow Logs
Why this is correct
Network traffic logs.
- ✗
AWS CloudTrail
Why it's wrong here
API activity logs.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ANS-C01 exam.